43438142 has 16 divisors (see below), whose sum is σ = 74822400. Its totient is φ = 18705240.

The previous prime is 43438121. The next prime is 43438151. The reversal of 43438142 is 24183434.

43438142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51542 + ... + 52377.

It is an arithmetic number, because the mean of its divisors is an integer number (4676400).

Almost surely, 2^43438142 is an apocalyptic number.

43438142 is a deficient number, since it is larger than the sum of its proper divisors (31384258).

43438142 is a wasteful number, since it uses less digits than its factorization.

43438142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103951.

The product of its digits is 9216, while the sum is 29.

The square root of 43438142 is about 6590.7618679482. The cubic root of 43438142 is about 351.5256987862.

The spelling of 43438142 in words is "forty-three million, four hundred thirty-eight thousand, one hundred forty-two".